Jacob scjjuehlk



2 Sheets-Sheet 1.

' (No Model.)

ICE MACHINE.

No. 342,543. Patented'Mayfzs, 1886.

y www. fm.

(No Model.) 2 sheets-Sheet J.' SCHUEHLE.`

ICE MACHINE.

N0.342,543; n @muted-May .25,1886l- UNITED STATES AT ENT Trice. i

*ffice-MACHINE.

SPECIPICATTON footing partei' Letter-5 Appiicatimrlil-cd Mart-h lt, lrrti.

Toy all whom it may concern:

Be it known that I, .Lieou Seuuiaumi, a citizen ot' the United States, residing` at San Antonio, in the county ot' Bexar and State ot' Texas, have invented certain new and usei'ul improvements in icclachines, and l uo hereby declare that the fol-lowing is a t'ull, clear, and exact description of the same. ret'- erence being had to the annexed drawings` making a part of this specification, and to the letters and tig'ures ot' reference marked thereon. l

Figure l of the drawings represent aside elevation of my invention, partly in section, and Fig. 2, a vertical section ofthe compressor and one of the oil-intereeptors on an enlarged scale, with the several pipe connections, v

valves, Xie., in elevation. v

The present invention has relation to that class ot' ice-machineswherein a liquetiablega-s, prel'erably that of ammonia, is introduced in a compression-pump. and is compressedto a lpartly statel of liquetaction, the pressure being` subsequently removed,the -liqueiied refrigerating agent expanding through tubes, coils, tanks, or other Ichambers, and the frigoritic ett'ects produced by the volatile liquid again assuming its gaseous state is utilized t'or absorption ot' heat.

lThe invention therefore consists in an iur proved arrangement ot' coils, combined with successive oil-intcrcepting tanks, and certain improvements in the construction ot' the gas- 4 .compressor and its' adjuncts, as willbe hereinafter described, and specitieally set t'orth in the claims.

In thez'iccompanying drawings, A represents the compressing-cylinder containing oil ip the lower portion thereof, as a compression me-v dium to lubricate thc piston and preventleakage at that point. From the compressingcylindcr the compressed and partlydiquelicd gas passes through the pipe a into the top ot' the vertical cylindrical oil-intercepter B, and thence through the vertical pipe b into one end of aseeond oil-intercepter, C.' This interceptor C is supported in a nearlyhorizontal position, but yet with the end at which the refrigerant enters lslightly higher, and the opposite end thereof has con'nected'to its under side apipe, c. This pipe carries the oil that may have passed tothe interceptor` C, and also any am- Pzlteut. No 34.1 543-dated lVIay 25, 18:16.

Serial ,\'o idillio4 (No inodrf;

inonia that may havt` lhlucth-d. to the liduidholder l). and as ilu-ammonia will llood on top olA the oil h v openini`` llnl valve rot' :i pipe.tl,

it is allowed to llow through .said pipe into a second lhpiiddioldcr, il, which l terni the main lioni=l-holdcrf and the, oil that may have collected in the holder kl iscarriedto the oilintercept or l l slightlyY opening the valve ,(j ol' a pipc. which eonnectsthcliipiid-holder with thc interceptor. 'lhe'rct'rigeraut passes troni the interceptor l" through the'pipe /l to the manifold i ol' the coiulcnser-coil l?, the coil being placed in a tank, (.h-into which water is admitted through the pipej.v

The liquidholders l) 1*] are provided with glass gages 1.1 l.respectivclydo indicate the amount otliquid therein. rlhe refrigerant issuing trom the coil l" is conducted into the liquid-holder lhand thence through the pipe nnwhich is controlled hy valve a, to the manifold o ot the t'rcezing-coil lt, placed in thetank l. rlhe cold gas is then conducted in thcpipe, p through the interceptor @,wherc it cools the heated oil-vapors coming` l'rom the coml'rressor,

j and thence passes into the ,jacket K thereot'.

rlhe interceptor B has apipe, 1, provided with a valve, r, for the purpose ot' admitting oil to the pump through the 'stalling-box, and to regulate the supply as t'ound desirable.

The construction of the apparatus and its operation havinl been fully set t'orth, i will now describe more minutelv the compressor. The compressiiig-cylinder A is provided with a jacket, K, in the lower portion of which a certain quantity ot" crude lubricating-oil is kept to lubricate the piston L and seal its periphery against the interior ot" the cylinder.

rlhe walls ot' said c vlinder have iu their lower halt' a series ot' vertical slots, )L through which the lubricating-oil passes in and out as the piston is in motion, and also to permit the ammonia-gas to enter the cylinder above the piston when the latter is at the bottoni ot its course and has dipped into the oil. rlhe piston is provided with packing-rings r and pe ripheral grooves s. to carry oil on its upward movement and` lubricate the cylinder. The piston is provided at its upper end with a suitable seat upon which rests the valve N, said walvehavingl stems t passinl loosely through holes in the pistomand havingr theirlower ends attached to a spider, t), playing on thc piston- IOO is a spring, Q, coiled around the rod l, and' .serving to bring the val ve to its seat. The valvecontains the Adischarge-valve R, of greater di,- ameter than the interior diameter ofd thecylinde'r, and rests upona suitably-formed seat,'

consisting of a steel ring, u. A series of recesses, S, are formed aroundthe interior of the valve-chamber and directly opposite the periphery of the valve R, through which the compressed ammonia-gas escapes into the valveehamber and out through the dischargepipe @which is provided with av valve, o.

Pendent from the center oft-he valvechamber is a cylindricalprojection, yw, to guide-aud retain one end of-the coil-spring T, while the opposite end is guided and retained by a similar projection, upon the top of thevalve, the distance between the projections regulating the distance that the valve can be lifted 'olf its seat.

The valve-chamber has also between it and itsjacket a space in communication with the gasreceiving chamber surrounding the cylinder A I for the reception of `cool gas to cool the walls of thevalvechamber. The` lubricating-oil in thebottom of the cylinder is incommunica- 3o tion with an .oil-chamber, U., located between l the twostuingboxes, through which the pis-v tonrod passes, and at one side ofthe cylindrical jacket K is connected a glass gage, y, to

show the amountof oiltherein, an additional supply of oil being admitted by means of a suitable hand -`,pump,V V. The interceptiug cylinder B isalso provided' with a glass gage,

z, to indicate the amount of oil therein.

The liquid-holder D, in 'connection with the 4o main holder E, is considered of lgreat importance, asit keeps eondenserandfreezing coils entirely free from eil, as it eondenses the oil vapors besides a limited quantity of am' monia-gas, which latter` expands by introducing it with the oil back tothe pump-cylinder,` and reduces the temperature of the oil down below freezing-point, and-thereby keeps .thev

' stuffing-box perfectly cool, as well as coolingv the pump. The construction ofyalve inthe 5o piston is also of importance, as it has comparatively little lift, and consequently lasts `much longer, as Well as` allowingthe liquid and'gas to pass'freely to top of piston.

Having 'now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

chamber in the vupper end. of the cylinder A` l. In an ice-machine, the combination of a gas-compressor adapted to contain oil in its lower end, two oil-interceptors communicatv ing with each other and with' the compressor, 6o and one or. more liquidholders communicat# ing with each other and with the interceptors, condenser-coils, and freezing-coils, substan-v tially as and for the purpose set forth.

2. In an ice-machine, a gas-compressor and 6 5 twooil-interceptors,one arranged horizontally, or nearly so, and the other arranged vertically and communicating with the compressor at both top and bottom, and with a chamber between the'stuing-boxes, in combination with 7o two liqu'id-h0lders,one of whichcommunicates with thejnterceptors and the other with the ,condenser-coils and freezingcoils, said holders also communicating with each other, substantially as and for the purpose specified.

3. Inl aniee-mac'ninera system of condensercoils and freezing-coils and a gas-compressor adapted to contain oil in its lower end, and consisting of a jaeketed `cylinder provided with ya valve at its upper end, having its cham 8ov ber formed with a series of recesses,a piston at the-lower endvof` the cylinder carrying a valve seated in the lower end of the pistou, inv

Vcombination with-two oil-interceptors communicating with each other and with the colnpresser and one or more liquid-holderscommunicating with each other and with the4 intereeptors, substantially as and for the purpose described. l

A 4. In an ice-machine, agascompressor eon- 9o. s'isting of a jacketed cylinder having at its upper vend a chamber formed with recesses and containing a valve and spring for retaining it l on its seat, and the lower end of the cylinder adapted to contain oil and having a series of vertical slots, in combination with a piston'4 and a valve seated therein, having stems which loosely passthrough the piston and connected 'to a. spider, and a spring for operating the valve, and an oil-interceptor communicating, roo

4with the top and bottom of the gas compressor and-with one or more liquid-holders and `a second interceptor, substantial ly as and for the purpose set forth. I

In testimony that I claim the above I have :o5 hereunto subscribed my maille in the presence of two witnesses.

JACOBk soHUEHLn."

Witnesses: y E. M. Fowinnic, J oHlN FOWLER. 

